Loose fasteners on various components of the main unit or carriage; insufficient oil in the gearbox leading to gear wear; damaged bearings, or excessive/insufficient bearing clearance causing severe radial runout of the spindle; deformation of the saw blade mounting flange (due to impact), or damage to the saw blade support ring; oil level in the carriage lubrication reservoir is too low, or an unsuitable grade of lubricant has been used (oil is too thin or too viscous); excessive pressure between the guide rollers and the guide rails; or damage to the cycloidal pinwheel reducer.

 

 

Primarily includes excessive radial runout in a new saw blade; eccentricity between the saw blade's center bore and its outer circumference; insufficient sharpness of the diamond segments, or a mismatch between the segments and the type of stone being processed; alternatively, the saw blade matrix may have undergone multiple re-welding cycles, resulting in material fatigue and approaching the end of its service life.

 

 

The raw stone block is positioned unstably; the feed trolley is not securely locked; or the set cutting depth (single pass depth) is too deep, and/or the lateral feed speed is too fast.

 

 

Focus inspections on the various components of the spindle assembly. Check whether the spindle's radial runout exceeds the allowable tolerance range; if it does, this can typically be resolved by adjusting the bearing lock nuts. Once the adjustment is complete, ensure that the anti-loosening washer is securely locked in place.

 

Inspect the bearings, gears, spindle, and gear shafts to ensure they are intact and undamaged; assess their degree of wear to determine whether replacement or repair is required. Identify the specific cause of any oil shortage in the gearbox—determining whether it is due to damaged seals or simply normal oil consumption—in order to formulate an appropriate maintenance plan.

 

Check all fasteners for looseness; retighten them as necessary, depending on the specific condition.

 

Check the oil level in the lubrication reservoir; if the level is significantly low, replenish the lubricant immediately.

 

Observe the saw blade while it is rotating to check for any signs of excessive wobbling or oscillation. Inspect the diamond segments to assess the degree of diamond crystal exposure—thereby determining whether the saw blade is sufficiently sharp; if the segments have become dull, use a firebrick to re-dress (sharpen) the blade. Finally, observe the operator to ensure that the machine is being operated correctly and without error.